DTC U3003:16 [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]

id1502c1066800

Without Mazda M Hybrid

Outline

System malfunction location

Adaptive LED headlights control module low power supply voltage input

Detection condition

•  The adaptive LED headlights control module power supply circuit voltage is lower than the standard.

Fail-safe

Not applicable

Possible cause

•  DTCs are stored in the PCM.

•  Battery malfunction

•  Malfunction in generator

•  Adaptive LED headlights control module connector or terminal malfunction

•  Short to ground in adaptive LED headlights control module power supply circuit

•  Open circuit in adaptive LED headlights control module power supply circuit

•  Adaptive LED headlights control module malfunction

System malfunction location	Adaptive LED headlights control module low power supply voltage input
Detection condition	• The adaptive LED headlights control module power supply circuit voltage is lower than the standard.
Fail-safe	Not applicable
Possible cause	• DTCs are stored in the PCM. • Battery malfunction • Malfunction in generator • Adaptive LED headlights control module connector or terminal malfunction • Short to ground in adaptive LED headlights control module power supply circuit • Open circuit in adaptive LED headlights control module power supply circuit • Adaptive LED headlights control module malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

INSPECT PCM FOR MALFUNCTION

•  Perform the DTC inspection for the PCM.
(See DTC INSPECTION.)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-D)].)

(See DTC TABLE [PCM (SKYACTIV-G (E))].)

(See DTC TABLE [PCM (SKYACTIV-X)].)

No

Go to the next step.

2

INSPECT BATTERY FOR MALFUNCTION

•  Inspect the applicable part.
(See BATTERY INSPECTION [(E)].)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See BATTERY RECHARGING [(E)].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3

INSPECT GENERATOR FOR MALFUNCTION

•  Inspect the applicable part.
(See GENERATOR INSPECTION [SKYACTIV-D 1.8].)

(See GENERATOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)

(See GENERATOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

(See INTEGRATED STARTER GENERATOR (ISG) INSPECTION.)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)

(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

(See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

(See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-G].)

4

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(See CONNECTOR INSPECTION.)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

5

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

6

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for open circuit.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the adaptive LED headlights control module.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the adaptive LED headlights control module, then go to the next step.
(See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTC IS DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	INSPECT PCM FOR MALFUNCTION • Perform the DTC inspection for the PCM. (See DTC INSPECTION.) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-D)].) (See DTC TABLE [PCM (SKYACTIV-G (E))].) (See DTC TABLE [PCM (SKYACTIV-X)].)
No	Go to the next step.
2	INSPECT BATTERY FOR MALFUNCTION • Inspect the applicable part. (See BATTERY INSPECTION [(E)].) • Is the part normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification. (See BATTERY RECHARGING [(E)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 1.8].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
3	INSPECT GENERATOR FOR MALFUNCTION • Inspect the applicable part. (See GENERATOR INSPECTION [SKYACTIV-D 1.8].) (See GENERATOR INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See GENERATOR INSPECTION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See INTEGRATED STARTER GENERATOR (ISG) INSPECTION.) • Is the part normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification. (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].) (See INTEGRATED STARTER GENERATOR (ISG) REMOVAL/INSTALLATION [SKYACTIV-G].)
4	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the adaptive LED headlights control module. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the adaptive LED headlights control module, then go to the next step. (See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
No	DTC troubleshooting completed.

With Mazda M Hybrid

Outline

System malfunction location

Adaptive LED headlights control module low power supply voltage input

Detection condition

•  The adaptive LED headlights control module power supply circuit voltage is lower than the standard.

Fail-safe

Not applicable

Possible cause

•  DTCs are stored in the following modules.

―  PCM

―  Mazda M Hybrid battery

―  DC-DC converter (Mazda M Hybrid)

―  Integrated starter generator (ISG)

•  Battery malfunction

•  Adaptive LED headlights control module connector or terminal malfunction

•  Short to ground in adaptive LED headlights control module power supply circuit

•  Open circuit in adaptive LED headlights control module power supply circuit

•  Adaptive LED headlights control module malfunction

System malfunction location	Adaptive LED headlights control module low power supply voltage input
Detection condition	• The adaptive LED headlights control module power supply circuit voltage is lower than the standard.
Fail-safe	Not applicable
Possible cause	• DTCs are stored in the following modules. ― PCM ― Mazda M Hybrid battery ― DC-DC converter (Mazda M Hybrid) ― Integrated starter generator (ISG) • Battery malfunction • Adaptive LED headlights control module connector or terminal malfunction • Short to ground in adaptive LED headlights control module power supply circuit • Open circuit in adaptive LED headlights control module power supply circuit • Adaptive LED headlights control module malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY DTCs

•  Perform the DTC inspection for the following modules.
(See DTC INSPECTION.)

―  PCM

―  Mazda M Hybrid battery

―  DC-DC converter (Mazda M Hybrid)

―  Integrated starter generator (ISG)

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-G (E))].)

(See DTC TABLE [PCM (SKYACTIV-X)].)

(See DTC TABLE [Mazda M Hybrid BATTERY].)

(See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].)

(See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].)

No

Go to the next step.

2

INSPECT BATTERY FOR MALFUNCTION

•  Inspect the applicable part.
(See BATTERY INSPECTION [(E)].)

•  Is the part normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

(See BATTERY RECHARGING [(E)].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

3

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(See CONNECTOR INSPECTION.)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

4

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY

•  Inspect the applicable circuit for a short to power supply.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

5

INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for open circuit.
(See CIRCUIT INSPECTION.)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the adaptive LED headlights control module.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the adaptive LED headlights control module, then go to the next step.
(See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTC IS DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY DTCs • Perform the DTC inspection for the following modules. (See DTC INSPECTION.) ― PCM ― Mazda M Hybrid battery ― DC-DC converter (Mazda M Hybrid) ― Integrated starter generator (ISG) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G (E))].) (See DTC TABLE [PCM (SKYACTIV-X)].) (See DTC TABLE [Mazda M Hybrid BATTERY].) (See DTC TABLE [DC-DC CONVERTER (Mazda M Hybrid)].) (See DTC TABLE [INTEGRATED STARTER GENERATOR (ISG)].)
1		No	Go to the next step.
2	INSPECT BATTERY FOR MALFUNCTION • Inspect the applicable part. (See BATTERY INSPECTION [(E)].) • Is the part normal?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See BATTERY RECHARGING [(E)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)
3	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) • Are the connector and terminal normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO POWER SUPPLY • Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT ADAPTIVE LED HEADLIGHTS CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for open circuit. (See CIRCUIT INSPECTION.) • Is the circuit normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the adaptive LED headlights control module. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the adaptive LED headlights control module, then go to the next step. (See ADAPTIVE LED HEADLIGHTS CONTROL MODULE REMOVAL/INSTALLATION.)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTC IS DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.